They are a bit slower to operate but there is no neutral to them so they will hold in position and yes they will lift a motor and trans if needed..put 2 on one on each side as that will help in balancing a load if needed..

the cable will run to a block in the then to a block in the center of the lift. use a snatch block so it is easy to re rig if needed..

Sam

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I have tried most all of it and now do what is known to work..